java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tellfa.colony/com.tellfa.colony.Activities.PostShow_page}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean com.tellfa.colony.DBhelper.FavHelper.checkFavPost(java.lang.String)' on a null object reference

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  • How to check items from database in android
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    • java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tellfa.colony/com.tellfa.colony.Activities.PostShow_page}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean com.tellfa.colony.DBhelper.FavHelper.checkFavPost(java.lang.String)' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2331) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2391) at android.app.ActivityThread.access$800(ActivityThread.java:151) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1309) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5349) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean com.tellfa.colony.DBhelper.FavHelper.checkFavPost(java.lang.String)' on a null object reference at com.tellfa.colony.Activities.PostShow_page.onCreate(PostShow_page.java:122) at android.app.Activity.performCreate(Activity.java:6020) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2284)
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